An OfficeTeam survey has found that 71% of professionals feel it is okay to become Facebook friends with coworkers, although only 49% of senior managers said they were comfortable doing so. It is often best to accept requests to prevent hurting coworkers' feelings, especially if you can use privacy settings to adjust what they can see on your profiles, OfficeTeam said. Of course this also means you need to be vigilant about not posting updates or photos that reveal too much.